gtk2_ardour/audio_clock.cc

   1 /*
   2     Copyright (C) 1999 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdio> // for sprintf
  21 #include <cmath>
  22
  23 #include "pbd/convert.h"
  24 #include "pbd/enumwriter.h"
  25
  26 #include <gtkmm/style.h>
  27
  28 #include "gtkmm2ext/cairocell.h"
  29 #include <gtkmm2ext/utils.h>
  30
  31 #include "ardour/ardour.h"
  32 #include "ardour/session.h"
  33 #include "ardour/tempo.h"
  34 #include "ardour/profile.h"
  35 #include <sigc++/bind.h>
  36
  37 #include "ardour_ui.h"
  38 #include "audio_clock.h"
  39 #include "utils.h"
  40 #include "keyboard.h"
  41 #include "gui_thread.h"
  42 #include "i18n.h"
  43
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace Gtk;
  47 using namespace std;
  48
  49 using Gtkmm2ext::Keyboard;
  50
  51 using PBD::atoi;
  52 using PBD::atof;
  53
  54 sigc::signal<void> AudioClock::ModeChanged;
  55 vector<AudioClock*> AudioClock::clocks;
  56
  57 uint32_t AudioClock::field_length[] = {
  58         2, /* Timecode_Hours */
  59         2, /* Timecode_Minutes */
  60         2, /* Timecode_Seconds */
  61         2, /* Timecode_Frames */
  62         2, /* MS_Hours */
  63         2, /* MS_Minutes */
  64         2, /* MS_Seconds */
  65         3, /* MS_Milliseconds */
  66         4, /* Bars */
  67         2, /* Beats */
  68         4, /* Ticks */
  69         10, /* AudioFrames */
  70 };
  71
  72 AudioClock::AudioClock (const string& clock_name, bool transient, const string& widget_name,
  73                         bool allow_edit, bool follows_playhead, bool duration, bool with_info)
  74         : _name (clock_name)
  75         , is_transient (transient)
  76         , is_duration (duration)
  77         , editable (allow_edit)
  78         , _follows_playhead (follows_playhead)
  79         , supplemental_left (0)
  80         , supplemental_right (0)
  81         , last_when(0)
  82         , _canonical_time_is_displayed (true)
  83         , _canonical_time (0)
  84 {
  85         last_when = 0;
  86
  87         last_hrs = 9999;
  88         last_mins = 9999;
  89         last_secs = 9999;
  90         last_frames = 99999;
  91
  92         ms_last_hrs = 9999;
  93         ms_last_mins = 9999;
  94         ms_last_secs = 9999;
  95         ms_last_millisecs = 99999;
  96
  97         last_negative = false;
  98
  99         last_pdelta = 0;
 100         last_sdelta = 0;
 101         key_entry_state = 0;
 102         ops_menu = 0;
 103         dragging = false;
 104         bbt_reference_time = -1;
 105         editing_field = (Field) 0;
 106
 107         /* basic per-mode editable text "arrays" */
 108
 109         display = new CairoEditableText ();
 110
 111         _fixed_cells[Colon1] = new CairoCharCell (Colon1, ':');
 112         _fixed_cells[Colon2] = new CairoCharCell (Colon2, ':');
 113         _fixed_cells[Colon3] = new CairoCharCell (Colon3, ':');
 114         _fixed_cells[Bar1] = new CairoCharCell (Bar1, '|');
 115         _fixed_cells[Bar2] = new CairoCharCell (Bar2, '|');
 116
 117         // add an extra character for the negative sign
 118         _text_cells[Timecode_Hours] = new CairoTextCell (Timecode_Hours, field_length[Timecode_Hours] + 1);
 119         _text_cells[Timecode_Minutes] = new CairoTextCell (Timecode_Minutes, field_length[Timecode_Minutes]);
 120         _text_cells[Timecode_Seconds] = new CairoTextCell (Timecode_Seconds, field_length[Timecode_Seconds]);
 121         _text_cells[Timecode_Frames] = new CairoTextCell (Timecode_Frames, field_length[Timecode_Frames]);
 122
 123         /* Minutes/Seconds */
 124
 125         _text_cells[MS_Hours] = new CairoTextCell (MS_Hours, field_length[MS_Hours]);
 126         _text_cells[MS_Minutes] = new CairoTextCell (MS_Minutes, field_length[MS_Minutes]);
 127         _text_cells[MS_Seconds] = new CairoTextCell (MS_Seconds, field_length[MS_Seconds]);
 128         _text_cells[MS_Milliseconds] = new CairoTextCell (MS_Milliseconds, field_length[MS_Milliseconds]);
 129
 130         /* Beats/Bars/Ticks */
 131
 132         _text_cells[Bars] = new CairoTextCell (Bars, field_length[Bars]);
 133         _text_cells[Beats] = new CairoTextCell (Beats, field_length[Beats]);
 134         _text_cells[Ticks] = new CairoTextCell (Ticks, field_length[Ticks]);
 135
 136         /* Audio Frames */
 137
 138         _text_cells[AudioFrames] = new CairoTextCell (AudioFrames, field_length[AudioFrames]);
 139
 140         set_homogeneous (false);
 141
 142         if (with_info) {
 143
 144                 supplemental_left = new CairoEditableText ();
 145                 supplemental_right = new CairoEditableText ();
 146
 147                 /* field lengths of these cells will be set dynamically by ::set_mode()
 148                  */
 149
 150                 _text_cells[LowerLeft1] = new CairoTextCell (LowerLeft1, 0);
 151                 _text_cells[LowerLeft2] = new CairoTextCell (LowerLeft2, 0);
 152                 _text_cells[LowerRight1] = new CairoTextCell (LowerRight1, 0);
 153                 _text_cells[LowerRight2] = new CairoTextCell (LowerRight2, 0);
 154
 155                 bottom.set_spacing (1);
 156                 bottom.set_homogeneous (false);
 157                 bottom.pack_start (*supplemental_left, true, true);
 158                 bottom.pack_start (*supplemental_right, true, true);
 159
 160                 top.pack_start (*display, true, true);
 161
 162                 set_spacing (1);
 163
 164                 pack_start (top, true, true);
 165                 pack_start (bottom, true, true);
 166         } else {
 167                 pack_start (*display, true, true);
 168         }
 169
 170         show_all ();
 171
 172         set_widget_name (widget_name);
 173
 174         _mode = BBT; /* lie to force mode switch */
 175         set_mode (Timecode);
 176         set (last_when, true);
 177
 178         if (!is_transient) {
 179                 clocks.push_back (this);
 180         }
 181 }
 182
 183 AudioClock::~AudioClock ()
 184 {
 185         /* these are not manage()'d, so that we can add/remove
 186            them from containers as necessary.
 187         */
 188         delete display;
 189         delete supplemental_left;
 190         delete supplemental_right;
 191         /* XXX need to delete all cells too */
 192 }
 193
 194 void
 195 AudioClock::set_widget_name (const string& name)
 196 {
 197         Widget::set_name (name);
 198
 199         set_theme ();
 200 }
 201
 202 void
 203 AudioClock::set_theme ()
 204 {
 205         Glib::RefPtr<Gtk::Style> style = get_style ();
 206         double r, g, b, a;
 207
 208         if (!style) {
 209                 return;
 210         }
 211
 212         Pango::FontDescription font;
 213
 214         if (!is_realized()) {
 215                 font = get_font_for_style (get_name());
 216         } else {
 217                 font = style->get_font();
 218         }
 219
 220         display->set_font (font);
 221
 222         /* propagate font style,but smaller, into supplemental text */
 223         if (supplemental_left) {
 224                 boost::shared_ptr<CairoFontDescription> smaller_font (new CairoFontDescription (*display->font().get()));
 225                 smaller_font->set_size (12);
 226                 supplemental_right->set_font (smaller_font);
 227                 supplemental_left->set_font (smaller_font);
 228         }
 229
 230         Gdk::Color bg = style->get_base (Gtk::STATE_NORMAL);
 231         Gdk::Color fg = style->get_text (Gtk::STATE_NORMAL);
 232         Gdk::Color eg = style->get_text (Gtk::STATE_ACTIVE);
 233
 234         r = bg.get_red_p ();
 235         g = bg.get_green_p ();
 236         b = bg.get_blue_p ();
 237         a = 1.0;
 238
 239         display->set_bg (r, g, b, a);
 240
 241         if (supplemental_right) {
 242                 supplemental_right->set_bg (r,g,b,a);
 243                 supplemental_left->set_bg (r,g,b,a);
 244         }
 245
 246         r = fg.get_red_p ();
 247         g = fg.get_green_p ();
 248         b = fg.get_blue_p ();
 249         a = 1.0;
 250
 251         display->set_colors (r, g, b, a);
 252
 253         if (supplemental_right) {
 254                 supplemental_right->set_colors (r,g,b,a);
 255                 supplemental_left->set_colors (r,g,b,a);
 256         }
 257
 258         r = eg.get_red_p ();
 259         g = eg.get_green_p ();
 260         b = eg.get_blue_p ();
 261         a = 1.0;
 262
 263         display->set_edit_colors (r, g, b, a);
 264
 265         if (supplemental_right) {
 266                 supplemental_right->set_edit_colors (r,g,b,a);
 267                 supplemental_left->set_edit_colors (r,g,b,a);
 268         }
 269
 270         queue_draw ();
 271 }
 272
 273 void
 274 AudioClock::focus ()
 275 {
 276 }
 277
 278 void
 279 AudioClock::end_edit ()
 280 {
 281         display->stop_editing ();
 282         editing_field = (Field) 0;
 283         key_entry_state = 0;
 284
 285         /* move focus back to the default widget in the top level window */
 286
 287         Keyboard::magic_widget_drop_focus ();
 288
 289         Widget* top = get_toplevel();
 290
 291         if (top->is_toplevel ()) {
 292                 Window* win = dynamic_cast<Window*> (top);
 293                 win->grab_focus ();
 294         }
 295 }
 296
 297 void
 298 AudioClock::on_realize ()
 299 {
 300         VBox::on_realize ();
 301
 302         /* styles are not available until the widgets are bound to a window */
 303
 304         set_theme ();
 305 }
 306
 307 void
 308 AudioClock::set (framepos_t when, bool force, framecnt_t offset, char which)
 309 {
 310         if ((!force && !is_visible()) || _session == 0) {
 311                 return;
 312         }
 313
 314         bool const pdelta = Config->get_primary_clock_delta_edit_cursor ();
 315         bool const sdelta = Config->get_secondary_clock_delta_edit_cursor ();
 316
 317         if (offset && which == 'p' && pdelta) {
 318                 when = (when > offset) ? when - offset : offset - when;
 319         } else if (offset && which == 's' && sdelta) {
 320                 when = (when > offset) ? when - offset : offset - when;
 321         }
 322
 323         if (when == last_when && !force) {
 324                 return;
 325         }
 326
 327         if (which == 'p' && pdelta && !last_pdelta) {
 328                 set_widget_name("TransportClockDisplayDelta");
 329                 last_pdelta = true;
 330         } else if (which == 'p' && !pdelta && last_pdelta) {
 331                 set_widget_name("TransportClockDisplay");
 332                 last_pdelta = false;
 333         } else if (which == 's' && sdelta && !last_sdelta) {
 334                 set_widget_name("SecondaryClockDisplayDelta");
 335                 last_sdelta = true;
 336         } else if (which == 's' && !sdelta && last_sdelta) {
 337                 set_widget_name("SecondaryClockDisplay");
 338                 last_sdelta = false;
 339         }
 340
 341         switch (_mode) {
 342         case Timecode:
 343                 set_timecode (when, force);
 344                 break;
 345
 346         case BBT:
 347                 set_bbt (when, force);
 348                 break;
 349
 350         case MinSec:
 351                 set_minsec (when, force);
 352                 break;
 353
 354         case Frames:
 355                 set_frames (when, force);
 356                 break;
 357
 358         case Off:
 359                 break;
 360         }
 361
 362         last_when = when;
 363
 364         /* we're setting the time from a frames value, so keep it as the canonical value */
 365         _canonical_time = when;
 366         _canonical_time_is_displayed = false;
 367 }
 368
 369 void
 370 AudioClock::session_configuration_changed (std::string p)
 371 {
 372         if (p != "timecode-offset" && p != "timecode-offset-negative") {
 373                 return;
 374         }
 375
 376         framecnt_t current;
 377
 378         switch (_mode) {
 379         case Timecode:
 380                 if (is_duration) {
 381                         current = current_duration ();
 382                 } else {
 383                         current = current_time ();
 384                 }
 385                 set (current, true);
 386                 break;
 387         default:
 388                 break;
 389         }
 390 }
 391
 392 void
 393 AudioClock::set_frames (framepos_t when, bool /*force*/)
 394 {
 395         char buf[32];
 396         snprintf (buf, sizeof (buf), "%" PRId64, when);
 397
 398         display->set_text (_text_cells[AudioFrames], buf);
 399
 400         if (supplemental_left) {
 401                 framecnt_t rate = _session->frame_rate();
 402
 403                 if (fmod (rate, 1000.0) == 0.000) {
 404                         sprintf (buf, "%" PRId64 "K", rate/1000);
 405                 } else {
 406                         sprintf (buf, "%" PRId64, rate);
 407                 }
 408
 409                 supplemental_left->set_text (_text_cells[LowerLeft2], buf);
 410
 411                 float vid_pullup = _session->config.get_video_pullup();
 412
 413                 if (vid_pullup == 0.0) {
 414                         supplemental_right->set_text (_text_cells[LowerRight2], _("none"));
 415                 } else {
 416                         sprintf (buf, "%-6.4f", vid_pullup);
 417                         supplemental_right->set_text (_text_cells[LowerRight2], buf);
 418                 }
 419         }
 420 }
 421
 422 void
 423 AudioClock::set_minsec (framepos_t when, bool force)
 424 {
 425         char buf[32];
 426         framecnt_t left;
 427         int hrs;
 428         int mins;
 429         int secs;
 430         int millisecs;
 431
 432         left = when;
 433         hrs = (int) floor (left / (_session->frame_rate() * 60.0f * 60.0f));
 434         left -= (framecnt_t) floor (hrs * _session->frame_rate() * 60.0f * 60.0f);
 435         mins = (int) floor (left / (_session->frame_rate() * 60.0f));
 436         left -= (framecnt_t) floor (mins * _session->frame_rate() * 60.0f);
 437         secs = (int) floor (left / (float) _session->frame_rate());
 438         left -= (framecnt_t) floor (secs * _session->frame_rate());
 439         millisecs = floor (left * 1000.0 / (float) _session->frame_rate());
 440
 441         if (force || hrs != ms_last_hrs) {
 442                 sprintf (buf, "%02d", hrs);
 443                 display->set_text (_text_cells[MS_Hours], buf);
 444                 ms_last_hrs = hrs;
 445         }
 446
 447         if (force || mins != ms_last_mins) {
 448                 sprintf (buf, "%02d", mins);
 449                 display->set_text (_text_cells[MS_Minutes], buf);
 450                 ms_last_mins = mins;
 451         }
 452
 453         if (force || secs != ms_last_secs) {
 454                 sprintf (buf, "%02d", secs);
 455                 display->set_text (_text_cells[MS_Seconds], buf);
 456                 ms_last_secs = secs;
 457         }
 458
 459         if (force || millisecs != ms_last_millisecs) {
 460                 sprintf (buf, "%03d", millisecs);
 461                 display->set_text (_text_cells[MS_Milliseconds], buf);
 462                 ms_last_millisecs = millisecs;
 463         }
 464 }
 465
 466 void
 467 AudioClock::set_timecode (framepos_t when, bool force)
 468 {
 469         char buf[32];
 470         Timecode::Time TC;
 471
 472         if (is_duration) {
 473                 _session->timecode_duration (when, TC);
 474         } else {
 475                 _session->timecode_time (when, TC);
 476         }
 477
 478         if (force || TC.hours != last_hrs || TC.negative != last_negative) {
 479                 if (TC.negative) {
 480                         sprintf (buf, "-%0*" PRIu32, field_length[Timecode_Hours], TC.hours);
 481                 } else {
 482                         sprintf (buf, " %0*" PRIu32, field_length[Timecode_Hours], TC.hours);
 483                 }
 484                 display->set_text (_text_cells[Timecode_Hours], buf);
 485                 last_hrs = TC.hours;
 486                 last_negative = TC.negative;
 487         }
 488
 489         if (force || TC.minutes != last_mins) {
 490                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Minutes], TC.minutes);
 491                 display->set_text (_text_cells[Timecode_Minutes], buf);
 492                 last_mins = TC.minutes;
 493         }
 494
 495         if (force || TC.seconds != last_secs) {
 496                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Seconds], TC.seconds);
 497                 display->set_text (_text_cells[Timecode_Seconds], buf);
 498                 last_secs = TC.seconds;
 499         }
 500
 501         if (force || TC.frames != last_frames) {
 502                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Frames], TC.frames);
 503                 display->set_text (_text_cells[Timecode_Frames], buf);
 504                 last_frames = TC.frames;
 505         }
 506
 507         if (supplemental_right) {
 508                 double timecode_frames = _session->timecode_frames_per_second();
 509                 bool drop;
 510
 511                 if ((fabs(timecode_frames - 29.97) < 0.0001) || timecode_frames == 30) {
 512                         if (_session->timecode_drop_frames()) {
 513                                 drop = true;
 514                         } else {
 515                                 drop = false;
 516                         }
 517                 }
 518
 519                 if (fmod(timecode_frames, 1.0) == 0.0) {
 520                         sprintf (buf, "%u %s", int (timecode_frames), (drop ? "D" : ""));
 521                 } else {
 522                         sprintf (buf, "%.2f %s", timecode_frames, (drop ? "D" : ""));
 523                 }
 524
 525                 supplemental_right->set_text (_text_cells[LowerRight2], buf);
 526         }
 527 }
 528
 529 void
 530 AudioClock::set_bbt (framepos_t when, bool force)
 531 {
 532         char buf[16];
 533         Timecode::BBT_Time BBT;
 534
 535         /* handle a common case */
 536         if (is_duration) {
 537                 if (when == 0) {
 538                         BBT.bars = 0;
 539                         BBT.beats = 0;
 540                         BBT.ticks = 0;
 541                 } else {
 542                         _session->tempo_map().bbt_time (when, BBT);
 543                         BBT.bars--;
 544                         BBT.beats--;
 545                 }
 546         } else {
 547                 _session->tempo_map().bbt_time (when, BBT);
 548         }
 549
 550         sprintf (buf, "%0*" PRIu32, field_length[Bars], BBT.bars);
 551         if (force || _text_cells[Bars]->get_text () != buf) {
 552                 display->set_text (_text_cells[Bars], buf);
 553         }
 554         sprintf (buf, "%0*" PRIu32, field_length[Beats], BBT.beats);
 555         if (force || _text_cells[Beats]->get_text () != buf) {
 556                 display->set_text (_text_cells[Beats], buf);
 557         }
 558         sprintf (buf, "%0*" PRIu32, field_length[Ticks], BBT.ticks);
 559         if (force || _text_cells[Ticks]->get_text () != buf) {
 560                 display->set_text (_text_cells[Ticks], buf);
 561         }
 562
 563         if (supplemental_right) {
 564                 framepos_t pos;
 565
 566                 if (bbt_reference_time < 0) {
 567                         pos = when;
 568                 } else {
 569                         pos = bbt_reference_time;
 570                 }
 571
 572                 TempoMetric m (_session->tempo_map().metric_at (pos));
 573
 574                 sprintf (buf, "%-5.2f", m.tempo().beats_per_minute());
 575                 supplemental_left->set_text (_text_cells[LowerLeft2], buf);
 576
 577                 sprintf (buf, "%g|%g", m.meter().beats_per_bar(), m.meter().note_divisor());
 578                 supplemental_right->set_text (_text_cells[LowerRight2], buf);
 579         }
 580 }
 581
 582 void
 583 AudioClock::set_session (Session *s)
 584 {
 585         SessionHandlePtr::set_session (s);
 586
 587         if (_session) {
 588
 589                 _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&AudioClock::session_configuration_changed, this, _1), gui_context());
 590
 591                 XMLProperty* prop;
 592                 XMLNode* node = _session->extra_xml (X_("ClockModes"));
 593                 AudioClock::Mode amode;
 594
 595                 if (node) {
 596                         if ((prop = node->property (_name)) != 0) {
 597                                 amode = AudioClock::Mode (string_2_enum (prop->value(), amode));
 598                                 set_mode (amode);
 599                         }
 600                 }
 601
 602                 set (last_when, true);
 603         }
 604 }
 605
 606 void
 607 AudioClock::edit_next_field ()
 608 {
 609         /* move on to the next field.
 610          */
 611
 612         switch (editing_field) {
 613
 614                 /* Timecode */
 615
 616         case Timecode_Hours:
 617                 editing_field = Timecode_Minutes;
 618                 display->start_editing (_text_cells[Timecode_Minutes]);
 619                 break;
 620         case Timecode_Minutes:
 621                 editing_field = Timecode_Seconds;
 622                 display->start_editing (_text_cells[Timecode_Seconds]);
 623                 break;
 624         case Timecode_Seconds:
 625                 editing_field = Timecode_Frames;
 626                 display->start_editing (_text_cells[Timecode_Frames]);
 627                 break;
 628         case Timecode_Frames:
 629                 end_edit ();
 630                 break;
 631
 632                 /* Min:Sec */
 633
 634         case MS_Hours:
 635                 editing_field = MS_Minutes;
 636                 display->start_editing (_text_cells[MS_Minutes]);
 637                 break;
 638         case MS_Minutes:
 639                 editing_field = MS_Seconds;
 640                 display->start_editing (_text_cells[MS_Seconds]);
 641                 break;
 642         case MS_Seconds:
 643                 editing_field = MS_Milliseconds;
 644                 display->start_editing (_text_cells[MS_Milliseconds]);
 645                 break;
 646         case MS_Milliseconds:
 647                 end_edit ();
 648                 break;
 649
 650                 /* BBT */
 651
 652         case Bars:
 653                 editing_field = Beats;
 654                 display->start_editing (_text_cells[Beats]);
 655                 break;
 656         case Beats:
 657                 editing_field = Ticks;
 658                 display->start_editing (_text_cells[Ticks]);
 659                 break;
 660         case Ticks:
 661                 end_edit ();
 662                 break;
 663
 664                 /* audio frames */
 665         case AudioFrames:
 666                 end_edit ();
 667                 break;
 668
 669         default:
 670                 break;
 671         }
 672
 673         key_entry_state = 0;
 674 }
 675
 676 bool
 677 AudioClock::on_key_press_event (GdkEventKey* ev)
 678 {
 679         /* return true for keys that we MIGHT use
 680            at release
 681         */
 682         switch (ev->keyval) {
 683         case GDK_0:
 684         case GDK_KP_0:
 685         case GDK_1:
 686         case GDK_KP_1:
 687         case GDK_2:
 688         case GDK_KP_2:
 689         case GDK_3:
 690         case GDK_KP_3:
 691         case GDK_4:
 692         case GDK_KP_4:
 693         case GDK_5:
 694         case GDK_KP_5:
 695         case GDK_6:
 696         case GDK_KP_6:
 697         case GDK_7:
 698         case GDK_KP_7:
 699         case GDK_8:
 700         case GDK_KP_8:
 701         case GDK_9:
 702         case GDK_KP_9:
 703         case GDK_period:
 704         case GDK_comma:
 705         case GDK_KP_Decimal:
 706         case GDK_Tab:
 707         case GDK_Return:
 708         case GDK_KP_Enter:
 709         case GDK_Escape:
 710                 return true;
 711         default:
 712                 return false;
 713         }
 714 }
 715
 716 bool
 717 AudioClock::on_key_release_event (GdkEventKey *ev)
 718 {
 719         if (editing_field == 0) {
 720                 return false;
 721         }
 722
 723         CairoTextCell *cell = _text_cells[editing_field];
 724
 725         if (!cell) {
 726                 return false;
 727         }
 728
 729         string new_text;
 730         char new_char = 0;
 731         bool move_on = false;
 732
 733         switch (ev->keyval) {
 734         case GDK_0:
 735         case GDK_KP_0:
 736                 new_char = '0';
 737                 break;
 738         case GDK_1:
 739         case GDK_KP_1:
 740                 new_char = '1';
 741                 break;
 742         case GDK_2:
 743         case GDK_KP_2:
 744                 new_char = '2';
 745                 break;
 746         case GDK_3:
 747         case GDK_KP_3:
 748                 new_char = '3';
 749                 break;
 750         case GDK_4:
 751         case GDK_KP_4:
 752                 new_char = '4';
 753                 break;
 754         case GDK_5:
 755         case GDK_KP_5:
 756                 new_char = '5';
 757                 break;
 758         case GDK_6:
 759         case GDK_KP_6:
 760                 new_char = '6';
 761                 break;
 762         case GDK_7:
 763         case GDK_KP_7:
 764                 new_char = '7';
 765                 break;
 766         case GDK_8:
 767         case GDK_KP_8:
 768                 new_char = '8';
 769                 break;
 770         case GDK_9:
 771         case GDK_KP_9:
 772                 new_char = '9';
 773                 break;
 774
 775         case GDK_period:
 776         case GDK_comma:
 777         case GDK_KP_Decimal:
 778                 if (_mode == MinSec && editing_field == MS_Seconds) {
 779                         new_char = '.'; // XXX i18n
 780                 } else {
 781                         return false;
 782                 }
 783                 break;
 784
 785         case GDK_Tab:
 786         case GDK_Return:
 787         case GDK_KP_Enter:
 788                 move_on = true;
 789                 break;
 790
 791         case GDK_Escape:
 792                 end_edit ();
 793                 ChangeAborted();  /*  EMIT SIGNAL  */
 794                 return true;
 795
 796         default:
 797                 return false;
 798         }
 799
 800         if (!move_on) {
 801
 802                 if (key_entry_state == 0) {
 803
 804                         /* initialize with a fresh new string */
 805
 806                         if (editing_field != AudioFrames) {
 807                                 for (uint32_t xn = 0; xn < field_length[editing_field] - 1; ++xn) {
 808                                         new_text += '0';
 809                                 }
 810                         } else {
 811                                 new_text = "";
 812                         }
 813
 814                 } else {
 815
 816                         string existing = cell->get_text();
 817                         if (existing.length() >= field_length[editing_field]) {
 818                                 new_text = existing.substr (1, field_length[editing_field] - 1);
 819                         } else {
 820                                 new_text = existing.substr (0, field_length[editing_field] - 1);
 821                         }
 822                 }
 823
 824                 new_text += new_char;
 825                 display->set_text (cell, new_text);
 826                 _canonical_time_is_displayed = true;
 827                 key_entry_state++;
 828         }
 829
 830         if (key_entry_state == field_length[editing_field]) {
 831                 move_on = true;
 832         }
 833
 834         if (move_on) {
 835
 836                 if (key_entry_state) {
 837
 838                         /* if key_entry_state != then we edited the text
 839                          */
 840
 841                         char buf[16];
 842
 843                         switch (editing_field) {
 844                         case Timecode_Hours:
 845                         case Timecode_Minutes:
 846                         case Timecode_Seconds:
 847                         case Timecode_Frames:
 848                                 // Check Timecode fields for sanity (may also adjust fields)
 849                                 timecode_sanitize_display();
 850                                 break;
 851                         case Bars:
 852                         case Beats:
 853                         case Ticks:
 854                                 // Bars should never be zero, unless this clock is for a duration
 855                                 if (atoi (_text_cells[Bars]->get_text()) == 0 && !is_duration) {
 856                                         snprintf (buf, sizeof (buf), "%0*" PRIu32, field_length[Bars], 1);
 857                                         display->set_text (_text_cells[Bars], buf);
 858                                         _canonical_time_is_displayed = true;
 859                                 }
 860                                 //  beats should never be zero, unless this clock is for a duration
 861                                 if (atoi (_text_cells[Beats]->get_text()) == 0 && !is_duration) {
 862                                         snprintf (buf, sizeof (buf), "%0*" PRIu32, field_length[Beats], 1);
 863                                         display->set_text (_text_cells[Beats], buf);
 864                                         _canonical_time_is_displayed = true;
 865                                 }
 866                                 break;
 867                         default:
 868                                 break;
 869                         }
 870
 871                         ValueChanged(); /* EMIT_SIGNAL */
 872                 }
 873
 874                 edit_next_field ();
 875         }
 876
 877         //if user hit Enter, lose focus
 878         switch (ev->keyval) {
 879         case GDK_Return:
 880         case GDK_KP_Enter:
 881                 end_edit ();
 882         }
 883
 884         return true;
 885 }
 886
 887 bool
 888 AudioClock::button_press (GdkEventButton *ev, CairoCell* cell)
 889 {
 890         switch (ev->button) {
 891         case 1:
 892                 if (editable) {
 893                         if (cell) {
 894                                 editing_field = (Field) cell->id ();
 895                                 display->start_editing (cell);
 896                         }
 897
 898                         Keyboard::magic_widget_grab_focus ();
 899
 900                         /* make absolutely sure that the pointer is grabbed */
 901                         gdk_pointer_grab(ev->window,false ,
 902                                          GdkEventMask( Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK |Gdk::BUTTON_RELEASE_MASK),
 903                                          NULL,NULL,ev->time);
 904                         dragging = true;
 905                         drag_accum = 0;
 906                         drag_start_y = ev->y;
 907                         drag_y = ev->y;
 908                 }
 909                 break;
 910
 911         default:
 912                 return false;
 913                 break;
 914         }
 915
 916         return true;
 917 }
 918
 919 bool
 920 AudioClock::button_release (GdkEventButton *ev, CairoCell* cell)
 921 {
 922         if (editable) {
 923                 if (dragging) {
 924                         gdk_pointer_ungrab (GDK_CURRENT_TIME);
 925                         dragging = false;
 926                         if (ev->y > drag_start_y+1 || ev->y < drag_start_y-1 || Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)){
 927                                 // we actually dragged so return without setting editing focus, or we shift clicked
 928                                 return true;
 929                         }
 930                 }
 931         }
 932
 933         if (Keyboard::is_context_menu_event (ev)) {
 934                 if (ops_menu == 0) {
 935                         build_ops_menu ();
 936                 }
 937                 ops_menu->popup (1, ev->time);
 938                 return true;
 939         }
 940
 941         return false;
 942 }
 943
 944 bool
 945 AudioClock::scroll (GdkEventScroll *ev, CairoCell* cell)
 946 {
 947         if (_session == 0 || !editable) {
 948                 return false;
 949         }
 950
 951         framepos_t frames = 0;
 952
 953         switch (ev->direction) {
 954
 955         case GDK_SCROLL_UP:
 956                 frames = get_frames ((Field) cell->id());
 957                 if (frames != 0) {
 958                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 959                                 frames *= 10;
 960                         }
 961                         set (current_time() + frames, true);
 962                         ValueChanged (); /* EMIT_SIGNAL */
 963                 }
 964                 break;
 965
 966         case GDK_SCROLL_DOWN:
 967                 frames = get_frames ((Field) cell->id());
 968                 if (frames != 0) {
 969                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 970                                 frames *= 10;
 971                         }
 972
 973                         if ((double)current_time() - (double)frames < 0.0) {
 974                                 set (0, true);
 975                         } else {
 976                                 set (current_time() - frames, true);
 977                         }
 978
 979                         ValueChanged (); /* EMIT_SIGNAL */
 980                 }
 981                 break;
 982
 983         default:
 984                 return false;
 985                 break;
 986         }
 987
 988         return true;
 989 }
 990
 991 bool
 992 AudioClock::field_motion_notify_event (GdkEventMotion *ev, Field field)
 993 {
 994         if (_session == 0 || !dragging) {
 995                 return false;
 996         }
 997
 998         float pixel_frame_scale_factor = 0.2f;
 999
1000 /*
1001         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier))  {
1002                 pixel_frame_scale_factor = 0.1f;
1003         }
1004
1005
1006         if (Keyboard::modifier_state_contains (ev->state,
1007                                                Keyboard::PrimaryModifier|Keyboard::SecondaryModifier)) {
1008
1009                 pixel_frame_scale_factor = 0.025f;
1010         }
1011 */
1012         double y_delta = ev->y - drag_y;
1013
1014         drag_accum +=  y_delta*pixel_frame_scale_factor;
1015
1016         drag_y = ev->y;
1017
1018         if (trunc(drag_accum) != 0) {
1019
1020                 framepos_t frames;
1021                 framepos_t pos;
1022                 int dir;
1023                 dir = (drag_accum < 0 ? 1:-1);
1024                 pos = current_time();
1025                 frames = get_frames (field,pos,dir);
1026
1027                 if (frames  != 0 &&  frames * drag_accum < current_time()) {
1028
1029                         set ((framepos_t) floor (pos - drag_accum * frames), false); // minus because up is negative in computer-land
1030
1031                 } else {
1032                         set (0 , false);
1033
1034                 }
1035
1036                 drag_accum= 0;
1037                 ValueChanged();  /* EMIT_SIGNAL */
1038
1039
1040         }
1041
1042         return true;
1043 }
1044
1045 framepos_t
1046 AudioClock::get_frames (Field field, framepos_t pos, int dir)
1047 {
1048         framecnt_t f = 0;
1049         Timecode::BBT_Time BBT;
1050         switch (field) {
1051         case Timecode_Hours:
1052                 f = (framecnt_t) floor (3600.0 * _session->frame_rate());
1053                 break;
1054         case Timecode_Minutes:
1055                 f = (framecnt_t) floor (60.0 * _session->frame_rate());
1056                 break;
1057         case Timecode_Seconds:
1058                 f = _session->frame_rate();
1059                 break;
1060         case Timecode_Frames:
1061                 f = (framecnt_t) floor (_session->frame_rate() / _session->timecode_frames_per_second());
1062                 break;
1063
1064         case AudioFrames:
1065                 f = 1;
1066                 break;
1067
1068         case MS_Hours:
1069                 f = (framecnt_t) floor (3600.0 * _session->frame_rate());
1070                 break;
1071         case MS_Minutes:
1072                 f = (framecnt_t) floor (60.0 * _session->frame_rate());
1073                 break;
1074         case MS_Seconds:
1075                 f = (framecnt_t) _session->frame_rate();
1076                 break;
1077         case MS_Milliseconds:
1078                 f = (framecnt_t) floor (_session->frame_rate() / 1000.0);
1079                 break;
1080
1081         case Bars:
1082                 BBT.bars = 1;
1083                 BBT.beats = 0;
1084                 BBT.ticks = 0;
1085                 f = _session->tempo_map().bbt_duration_at (pos,BBT,dir);
1086                 break;
1087         case Beats:
1088                 BBT.bars = 0;
1089                 BBT.beats = 1;
1090                 BBT.ticks = 0;
1091                 f = _session->tempo_map().bbt_duration_at(pos,BBT,dir);
1092                 break;
1093         case Ticks:
1094                 BBT.bars = 0;
1095                 BBT.beats = 0;
1096                 BBT.ticks = 1;
1097                 f = _session->tempo_map().bbt_duration_at(pos,BBT,dir);
1098                 break;
1099         default:
1100                 error << string_compose (_("programming error: %1"), "attempt to get frames from non-text field!") << endmsg;
1101                 f = 0;
1102                 break;
1103         }
1104
1105         return f;
1106 }
1107
1108 framepos_t
1109 AudioClock::current_time (framepos_t pos) const
1110 {
1111         if (!_canonical_time_is_displayed) {
1112                 return _canonical_time;
1113         }
1114
1115         framepos_t ret = 0;
1116
1117         switch (_mode) {
1118         case Timecode:
1119                 ret = timecode_frame_from_display ();
1120                 break;
1121         case BBT:
1122                 ret = bbt_frame_from_display (pos);
1123                 break;
1124
1125         case MinSec:
1126                 ret = minsec_frame_from_display ();
1127                 break;
1128
1129         case Frames:
1130                 ret = audio_frame_from_display ();
1131                 break;
1132
1133         case Off:
1134                 break;
1135         }
1136
1137         return ret;
1138 }
1139
1140 framepos_t
1141 AudioClock::current_duration (framepos_t pos) const
1142 {
1143         framepos_t ret = 0;
1144
1145         switch (_mode) {
1146         case Timecode:
1147                 ret = timecode_frame_from_display ();
1148                 break;
1149         case BBT:
1150                 ret = bbt_frame_duration_from_display (pos);
1151                 break;
1152
1153         case MinSec:
1154                 ret = minsec_frame_from_display ();
1155                 break;
1156
1157         case Frames:
1158                 ret = audio_frame_from_display ();
1159                 break;
1160
1161         case Off:
1162                 break;
1163         }
1164
1165         return ret;
1166 }
1167
1168 void
1169 AudioClock::timecode_sanitize_display()
1170 {
1171         // Check Timecode fields for sanity, possibly adjusting values
1172         if (atoi (_text_cells[Timecode_Minutes]->get_text()) > 59) {
1173                 display->set_text (_text_cells[Timecode_Minutes], "59");
1174                 _canonical_time_is_displayed = true;
1175         }
1176
1177         if (atoi (_text_cells[Timecode_Seconds]->get_text()) > 59) {
1178                 display->set_text (_text_cells[Timecode_Seconds], "59");
1179                 _canonical_time_is_displayed = true;
1180         }
1181
1182         switch ((long)rint(_session->timecode_frames_per_second())) {
1183         case 24:
1184                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 23) {
1185                         display->set_text (_text_cells[Timecode_Frames], "23");
1186                         _canonical_time_is_displayed = true;
1187                 }
1188                 break;
1189         case 25:
1190                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 24) {
1191                         display->set_text (_text_cells[Timecode_Frames], "24");
1192                         _canonical_time_is_displayed = true;
1193                 }
1194                 break;
1195         case 30:
1196                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 29) {
1197                         display->set_text (_text_cells[Timecode_Frames], "29");
1198                         _canonical_time_is_displayed = true;
1199                 }
1200                 break;
1201         default:
1202                 break;
1203         }
1204
1205         if (_session->timecode_drop_frames()) {
1206                 if ((atoi (_text_cells[Timecode_Minutes]->get_text()) % 10) && (atoi (_text_cells[Timecode_Seconds]->get_text()) == 0) && (atoi (_text_cells[Timecode_Frames]->get_text()) < 2)) {
1207                         display->set_text (_text_cells[Timecode_Frames], "02");
1208                         _canonical_time_is_displayed = true;
1209                 }
1210         }
1211 }
1212
1213 /** This is necessary because operator[] isn't const with std::map.
1214  *  @param f Field.
1215  *  @return Label widget.
1216  */
1217 CairoTextCell*
1218 AudioClock::label (Field f) const
1219 {
1220         std::map<Field,CairoTextCell*>::const_iterator i = _text_cells.find (f);
1221         assert (i != _text_cells.end ());
1222
1223         return i->second;
1224 }
1225
1226 framepos_t
1227 AudioClock::timecode_frame_from_display () const
1228 {
1229         if (_session == 0) {
1230                 return 0;
1231         }
1232
1233         Timecode::Time TC;
1234         framepos_t sample;
1235
1236         TC.hours = atoi (label (Timecode_Hours)->get_text());
1237         TC.minutes = atoi (label (Timecode_Minutes)->get_text());
1238         TC.seconds = atoi (label (Timecode_Seconds)->get_text());
1239         TC.frames = atoi (label (Timecode_Frames)->get_text());
1240         TC.rate = _session->timecode_frames_per_second();
1241         TC.drop= _session->timecode_drop_frames();
1242
1243         _session->timecode_to_sample (TC, sample, false /* use_offset */, false /* use_subframes */ );
1244
1245
1246 #if 0
1247 #define Timecode_SAMPLE_TEST_1
1248 #define Timecode_SAMPLE_TEST_2
1249 #define Timecode_SAMPLE_TEST_3
1250 #define Timecode_SAMPLE_TEST_4
1251 #define Timecode_SAMPLE_TEST_5
1252 #define Timecode_SAMPLE_TEST_6
1253 #define Timecode_SAMPLE_TEST_7
1254
1255         // Testcode for timecode<->sample conversions (P.S.)
1256         Timecode::Time timecode1;
1257         framepos_t sample1;
1258         framepos_t oldsample = 0;
1259         Timecode::Time timecode2;
1260         framecnt_t sample_increment;
1261
1262         sample_increment = (framecnt_t)rint(_session->frame_rate() / _session->timecode_frames_per_second);
1263
1264 #ifdef Timecode_SAMPLE_TEST_1
1265         // Test 1: use_offset = false, use_subframes = false
1266         cout << "use_offset = false, use_subframes = false" << endl;
1267         for (int i = 0; i < 108003; i++) {
1268                 _session->timecode_to_sample( timecode1, sample1, false /* use_offset */, false /* use_subframes */ );
1269                 _session->sample_to_timecode( sample1, timecode2, false /* use_offset */, false /* use_subframes */ );
1270
1271                 if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1272                         cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1273                         cout << "timecode1: " << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1274                         cout << "sample: " << sample1 << endl;
1275                         cout << "sample: " << sample1 << " -> ";
1276                         cout << "timecode2: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1277                         break;
1278                 }
1279
1280                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1281                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1282                         cout << "timecode1: " << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1283                         cout << "sample: " << sample1 << endl;
1284                         cout << "sample: " << sample1 << " -> ";
1285                         cout << "timecode2: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1286                         break;
1287                 }
1288                 oldsample = sample1;
1289                 _session->timecode_increment( timecode1 );
1290         }
1291
1292         cout << "sample_increment: " << sample_increment << endl;
1293         cout << "sample: " << sample1 << " -> ";
1294         cout << "timecode: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1295 #endif
1296
1297 #ifdef Timecode_SAMPLE_TEST_2
1298         // Test 2: use_offset = true, use_subframes = false
1299         cout << "use_offset = true, use_subframes = false" << endl;
1300
1301         timecode1.hours = 0;
1302         timecode1.minutes = 0;
1303         timecode1.seconds = 0;
1304         timecode1.frames = 0;
1305         timecode1.subframes = 0;
1306         sample1 = oldsample = 0;
1307
1308         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1309         cout << "Starting at sample: " << sample1 << " -> ";
1310         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1311
1312         for (int i = 0; i < 108003; i++) {
1313                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1314                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1315
1316 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1317 //     cout << "sample: " << sample1 << endl;
1318 //     cout << "sample: " << sample1 << " -> ";
1319 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1320
1321                 if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1322                         cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1323                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1324                         cout << "sample: " << sample1 << endl;
1325                         cout << "sample: " << sample1 << " -> ";
1326                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1327                         break;
1328                 }
1329
1330                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1331                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1332                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1333                         cout << "sample: " << sample1 << endl;
1334                         cout << "sample: " << sample1 << " -> ";
1335                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1336                         break;
1337                 }
1338                 oldsample = sample1;
1339                 _session->timecode_increment( timecode1 );
1340         }
1341
1342         cout << "sample_increment: " << sample_increment << endl;
1343         cout << "sample: " << sample1 << " -> ";
1344         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1345 #endif
1346
1347 #ifdef Timecode_SAMPLE_TEST_3
1348         // Test 3: use_offset = true, use_subframes = false, decrement
1349         cout << "use_offset = true, use_subframes = false, decrement" << endl;
1350
1351         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1352         cout << "Starting at sample: " << sample1 << " -> ";
1353         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1354
1355         for (int i = 0; i < 108003; i++) {
1356                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1357                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1358
1359 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1360 //     cout << "sample: " << sample1 << endl;
1361 //     cout << "sample: " << sample1 << " -> ";
1362 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1363
1364                 if ((i > 0) && ( ((oldsample - sample1) != sample_increment) && ((oldsample - sample1) != (sample_increment + 1)) && ((oldsample - sample1) != (sample_increment - 1)))) {
1365                         cout << "ERROR: sample increment not right: " << (oldsample - sample1) << " != " << sample_increment << endl;
1366                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1367                         cout << "sample: " << sample1 << endl;
1368                         cout << "sample: " << sample1 << " -> ";
1369                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1370                         break;
1371                 }
1372
1373                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1374                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1375                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1376                         cout << "sample: " << sample1 << endl;
1377                         cout << "sample: " << sample1 << " -> ";
1378                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1379                         break;
1380                 }
1381                 oldsample = sample1;
1382                 _session->timecode_decrement( timecode1 );
1383         }
1384
1385         cout << "sample_decrement: " << sample_increment << endl;
1386         cout << "sample: " << sample1 << " -> ";
1387         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1388 #endif
1389
1390
1391 #ifdef Timecode_SAMPLE_TEST_4
1392         // Test 4: use_offset = true, use_subframes = true
1393         cout << "use_offset = true, use_subframes = true" << endl;
1394
1395         for (long sub = 5; sub < 80; sub += 5) {
1396                 timecode1.hours = 0;
1397                 timecode1.minutes = 0;
1398                 timecode1.seconds = 0;
1399                 timecode1.frames = 0;
1400                 timecode1.subframes = 0;
1401                 sample1 = oldsample = (sample_increment * sub) / 80;
1402
1403                 _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, true /* use_subframes */ );
1404
1405                 cout << "starting at sample: " << sample1 << " -> ";
1406                 cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1407
1408                 for (int i = 0; i < 108003; i++) {
1409                         _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, true /* use_subframes */ );
1410                         _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, true /* use_subframes */ );
1411
1412                         if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1413                                 cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1414                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1415                                 cout << "sample: " << sample1 << endl;
1416                                 cout << "sample: " << sample1 << " -> ";
1417                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1418                                 //break;
1419                         }
1420
1421                         if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames || timecode2.subframes != timecode1.subframes) {
1422                                 cout << "ERROR: timecode2 not equal timecode1" << endl;
1423                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1424                                 cout << "sample: " << sample1 << endl;
1425                                 cout << "sample: " << sample1 << " -> ";
1426                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1427                                 break;
1428                         }
1429                         oldsample = sample1;
1430                         _session->timecode_increment( timecode1 );
1431                 }
1432
1433                 cout << "sample_increment: " << sample_increment << endl;
1434                 cout << "sample: " << sample1 << " -> ";
1435                 cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1436
1437                 for (int i = 0; i < 108003; i++) {
1438                         _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, true /* use_subframes */ );
1439                         _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, true /* use_subframes */ );
1440
1441                         if ((i > 0) && ( ((oldsample - sample1) != sample_increment) && ((oldsample - sample1) != (sample_increment + 1)) && ((oldsample - sample1) != (sample_increment - 1)))) {
1442                                 cout << "ERROR: sample increment not right: " << (oldsample - sample1) << " != " << sample_increment << endl;
1443                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1444                                 cout << "sample: " << sample1 << endl;
1445                                 cout << "sample: " << sample1 << " -> ";
1446                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1447                                 //break;
1448                         }
1449
1450                         if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames || timecode2.subframes != timecode1.subframes) {
1451                                 cout << "ERROR: timecode2 not equal timecode1" << endl;
1452                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1453                                 cout << "sample: " << sample1 << endl;
1454                                 cout << "sample: " << sample1 << " -> ";
1455                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1456                                 break;
1457                         }
1458                         oldsample = sample1;
1459                         _session->timecode_decrement( timecode1 );
1460                 }
1461
1462                 cout << "sample_decrement: " << sample_increment << endl;
1463                 cout << "sample: " << sample1 << " -> ";
1464                 cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1465         }
1466 #endif
1467
1468
1469 #ifdef Timecode_SAMPLE_TEST_5
1470         // Test 5: use_offset = true, use_subframes = false, increment seconds
1471         cout << "use_offset = true, use_subframes = false, increment seconds" << endl;
1472
1473         timecode1.hours = 0;
1474         timecode1.minutes = 0;
1475         timecode1.seconds = 0;
1476         timecode1.frames = 0;
1477         timecode1.subframes = 0;
1478         sample1 = oldsample = 0;
1479         sample_increment = _session->frame_rate();
1480
1481         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1482         cout << "Starting at sample: " << sample1 << " -> ";
1483         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1484
1485         for (int i = 0; i < 3600; i++) {
1486                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1487                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1488
1489 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1490 //     cout << "sample: " << sample1 << endl;
1491 //     cout << "sample: " << sample1 << " -> ";
1492 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1493
1494 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1495 //     {
1496 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1497 //       break;
1498 //     }
1499
1500                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1501                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1502                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1503                         cout << "sample: " << sample1 << endl;
1504                         cout << "sample: " << sample1 << " -> ";
1505                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1506                         break;
1507                 }
1508                 oldsample = sample1;
1509                 _session->timecode_increment_seconds( timecode1 );
1510         }
1511
1512         cout << "sample_increment: " << sample_increment << endl;
1513         cout << "sample: " << sample1 << " -> ";
1514         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1515 #endif
1516
1517
1518 #ifdef Timecode_SAMPLE_TEST_6
1519         // Test 6: use_offset = true, use_subframes = false, increment minutes
1520         cout << "use_offset = true, use_subframes = false, increment minutes" << endl;
1521
1522         timecode1.hours = 0;
1523         timecode1.minutes = 0;
1524         timecode1.seconds = 0;
1525         timecode1.frames = 0;
1526         timecode1.subframes = 0;
1527         sample1 = oldsample = 0;
1528         sample_increment = _session->frame_rate() * 60;
1529
1530         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1531         cout << "Starting at sample: " << sample1 << " -> ";
1532         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1533
1534         for (int i = 0; i < 60; i++) {
1535                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1536                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1537
1538 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1539 //     cout << "sample: " << sample1 << endl;
1540 //     cout << "sample: " << sample1 << " -> ";
1541 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1542
1543 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1544 //     {
1545 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1546 //       break;
1547 //     }
1548
1549                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1550                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1551                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1552                         cout << "sample: " << sample1 << endl;
1553                         cout << "sample: " << sample1 << " -> ";
1554                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1555                         break;
1556                 }
1557                 oldsample = sample1;
1558                 _session->timecode_increment_minutes( timecode1 );
1559         }
1560
1561         cout << "sample_increment: " << sample_increment << endl;
1562         cout << "sample: " << sample1 << " -> ";
1563         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1564 #endif
1565
1566 #ifdef Timecode_SAMPLE_TEST_7
1567         // Test 7: use_offset = true, use_subframes = false, increment hours
1568         cout << "use_offset = true, use_subframes = false, increment hours" << endl;
1569
1570         timecode1.hours = 0;
1571         timecode1.minutes = 0;
1572         timecode1.seconds = 0;
1573         timecode1.frames = 0;
1574         timecode1.subframes = 0;
1575         sample1 = oldsample = 0;
1576         sample_increment = _session->frame_rate() * 60 * 60;
1577
1578         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1579         cout << "Starting at sample: " << sample1 << " -> ";
1580         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1581
1582         for (int i = 0; i < 10; i++) {
1583                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1584                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1585
1586 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1587 //     cout << "sample: " << sample1 << endl;
1588 //     cout << "sample: " << sample1 << " -> ";
1589 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1590
1591 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1592 //     {
1593 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1594 //       break;
1595 //     }
1596
1597                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1598                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1599                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1600                         cout << "sample: " << sample1 << endl;
1601                         cout << "sample: " << sample1 << " -> ";
1602                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1603                         break;
1604                 }
1605                 oldsample = sample1;
1606                 _session->timecode_increment_hours( timecode1 );
1607         }
1608
1609         cout << "sample_increment: " << sample_increment << endl;
1610         cout << "sample: " << sample1 << " -> ";
1611         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1612 #endif
1613
1614 #endif
1615
1616         return sample;
1617 }
1618
1619 framepos_t
1620 AudioClock::minsec_frame_from_display () const
1621 {
1622         if (_session == 0) {
1623                 return 0;
1624         }
1625
1626         int hrs = atoi (label (MS_Hours)->get_text());
1627         int mins = atoi (label (MS_Minutes)->get_text());
1628         int secs = atoi (label (MS_Seconds)->get_text());
1629         int millisecs = atoi (label (MS_Milliseconds)->get_text());
1630
1631         framecnt_t sr = _session->frame_rate();
1632
1633         return (framepos_t) floor ((hrs * 60.0f * 60.0f * sr) + (mins * 60.0f * sr) + (secs * sr) + (millisecs * sr / 1000.0));
1634 }
1635
1636 framepos_t
1637 AudioClock::bbt_frame_from_display (framepos_t pos) const
1638 {
1639         if (_session == 0) {
1640                 error << "AudioClock::current_time() called with BBT mode but without session!" << endmsg;
1641                 return 0;
1642         }
1643
1644         AnyTime any;
1645         any.type = AnyTime::BBT;
1646
1647         any.bbt.bars = atoi (label (Bars)->get_text());
1648         any.bbt.beats = atoi (label (Beats)->get_text());
1649         any.bbt.ticks = atoi (label (Ticks)->get_text());
1650
1651         if (is_duration) {
1652                 any.bbt.bars++;
1653                 any.bbt.beats++;
1654                 return _session->any_duration_to_frames (pos, any);
1655         } else {
1656                 return _session->convert_to_frames (any);
1657         }
1658 }
1659
1660
1661 framepos_t
1662 AudioClock::bbt_frame_duration_from_display (framepos_t pos) const
1663 {
1664         if (_session == 0) {
1665                 error << "AudioClock::current_time() called with BBT mode but without session!" << endmsg;
1666                 return 0;
1667         }
1668
1669         Timecode::BBT_Time bbt;
1670
1671
1672         bbt.bars = atoi (label (Bars)->get_text());
1673         bbt.beats = atoi (label (Beats)->get_text());
1674         bbt.ticks = atoi (label (Ticks)->get_text());
1675
1676         return _session->tempo_map().bbt_duration_at(pos,bbt,1);
1677 }
1678
1679 framepos_t
1680 AudioClock::audio_frame_from_display () const
1681 {
1682         return (framepos_t) atoi (label (AudioFrames)->get_text ());
1683 }
1684
1685 void
1686 AudioClock::build_ops_menu ()
1687 {
1688         using namespace Menu_Helpers;
1689         ops_menu = new Menu;
1690         MenuList& ops_items = ops_menu->items();
1691         ops_menu->set_name ("ArdourContextMenu");
1692
1693         if (!Profile->get_sae()) {
1694                 ops_items.push_back (MenuElem (_("Timecode"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Timecode)));
1695         }
1696         ops_items.push_back (MenuElem (_("Bars:Beats"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), BBT)));
1697         ops_items.push_back (MenuElem (_("Minutes:Seconds"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), MinSec)));
1698         ops_items.push_back (MenuElem (_("Samples"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Frames)));
1699         ops_items.push_back (MenuElem (_("Off"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Off)));
1700
1701         if (editable && !is_duration && !_follows_playhead) {
1702                 ops_items.push_back (SeparatorElem());
1703                 ops_items.push_back (MenuElem (_("Set From Playhead"), sigc::mem_fun(*this, &AudioClock::set_from_playhead)));
1704                 ops_items.push_back (MenuElem (_("Locate to This Time"), sigc::mem_fun(*this, &AudioClock::locate)));
1705         }
1706 }
1707
1708 void
1709 AudioClock::set_from_playhead ()
1710 {
1711         if (!_session) {
1712                 return;
1713         }
1714
1715         set (_session->transport_frame());
1716         ValueChanged ();
1717 }
1718
1719 void
1720 AudioClock::locate ()
1721 {
1722         if (!_session || is_duration) {
1723                 return;
1724         }
1725
1726         _session->request_locate (current_time(), _session->transport_rolling ());
1727 }
1728
1729 void
1730 AudioClock::disconnect_signals ()
1731 {
1732         scroll_connection.disconnect ();
1733         button_press_connection.disconnect ();
1734         button_release_connection.disconnect ();
1735 }
1736
1737 void
1738 AudioClock::connect_signals ()
1739 {
1740         disconnect_signals ();
1741
1742         scroll_connection = display->scroll.connect (sigc::mem_fun (*this, &AudioClock::scroll));
1743         button_press_connection = display->button_press.connect (sigc::mem_fun (*this, &AudioClock::button_press));
1744         button_release_connection = display->button_release.connect (sigc::mem_fun (*this, &AudioClock::button_release));
1745 }
1746
1747 void
1748 AudioClock::set_mode (Mode m)
1749 {
1750         if (_mode == m) {
1751                 return;
1752         }
1753
1754         _mode = m;
1755
1756         display->clear_cells ();
1757
1758         if (supplemental_left) {
1759                 supplemental_left->clear_cells ();
1760                 supplemental_right->clear_cells ();
1761         }
1762
1763         switch (_mode) {
1764         case Timecode:
1765                 display->add_cell (_text_cells[Timecode_Hours]);
1766                 display->add_cell (_fixed_cells[Colon1]);
1767                 display->add_cell (_text_cells[Timecode_Minutes]);
1768                 display->add_cell (_fixed_cells[Colon2]);
1769                 display->add_cell (_text_cells[Timecode_Seconds]);
1770                 display->add_cell (_fixed_cells[Colon3]);
1771                 display->add_cell (_text_cells[Timecode_Frames]);
1772
1773                 if (supplemental_left) {
1774                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1775                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1776                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1777                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1778
1779                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 4);
1780                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 8);
1781
1782                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 4);
1783                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 6.25);
1784
1785                         supplemental_left->set_text (_text_cells[LowerLeft1], _("EXT"));
1786                         supplemental_right->set_text (_text_cells[LowerRight1], _("FPS"));
1787                 }
1788                 break;
1789
1790         case BBT:
1791                 display->add_cell (_text_cells[Bars]);
1792                 display->add_cell (_fixed_cells[Bar1]);
1793                 display->add_cell (_text_cells[Beats]);
1794                 display->add_cell (_fixed_cells[Bar2]);
1795                 display->add_cell (_text_cells[Ticks]);
1796                 if (supplemental_left) {
1797                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1798                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1799                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1800                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1801
1802                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 1);
1803                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 5.25);
1804
1805                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 1);
1806                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 5);
1807
1808                         supplemental_left->set_text (_text_cells[LowerLeft1], _("M"));
1809                         supplemental_right->set_text (_text_cells[LowerRight1], _("T"));
1810                 }
1811                 break;
1812
1813         case MinSec:
1814                 display->add_cell (_text_cells[MS_Hours]);
1815                 display->add_cell (_fixed_cells[Colon1]);
1816                 display->add_cell (_text_cells[MS_Minutes]);
1817                 display->add_cell (_fixed_cells[Colon2]);
1818                 display->add_cell (_text_cells[MS_Seconds]);
1819                 display->add_cell (_fixed_cells[Colon3]);
1820                 display->add_cell (_text_cells[MS_Milliseconds]);
1821                 break;
1822
1823         case Frames:
1824                 display->add_cell (_text_cells[AudioFrames]);
1825                 if (supplemental_left) {
1826                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1827                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1828                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1829                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1830
1831                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 3);
1832                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 5);
1833
1834                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 5);
1835                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 5);
1836
1837                         supplemental_left->set_text (_text_cells[LowerLeft1], _("SR"));
1838                         supplemental_right->set_text (_text_cells[LowerRight1], _("Pull"));
1839                 }
1840                 break;
1841
1842         case Off:
1843                 break;
1844         }
1845
1846         if (supplemental_left) {
1847                 /* clear information cells */
1848                 supplemental_left->set_text (_text_cells[LowerLeft2], _(""));
1849                 supplemental_right->set_text (_text_cells[LowerRight2], _(""));
1850
1851                 /* propagate font style,but smaller, into cells */
1852                 boost::shared_ptr<CairoFontDescription> smaller_font (new CairoFontDescription (*display->font().get()));
1853                 smaller_font->set_size (12);
1854                 supplemental_right->set_font (smaller_font);
1855                 supplemental_left->set_font (smaller_font);
1856         }
1857
1858         if (_mode != Off) {
1859                 connect_signals ();
1860         } else {
1861                 disconnect_signals  ();
1862         }
1863
1864         set (last_when, true);
1865
1866         if (!is_transient) {
1867                 ModeChanged (); /* EMIT SIGNAL (the static one)*/
1868         }
1869
1870         mode_changed (); /* EMIT SIGNAL (the member one) */
1871 }
1872
1873 void
1874 AudioClock::set_bbt_reference (framepos_t pos)
1875 {
1876         bbt_reference_time = pos;
1877 }
1878
1879 void
1880 AudioClock::on_style_changed (const Glib::RefPtr<Gtk::Style>& old_style)
1881 {
1882         VBox::on_style_changed (old_style);
1883         set_theme ();
1884 }
1885
1886 void
1887 AudioClock::set_is_duration (bool yn)
1888 {
1889         if (yn == is_duration) {
1890                 return;
1891         }
1892
1893         is_duration = yn;
1894         set (last_when, true, 0, 's');
1895 }
1896